gcc/gimple-fold.h

   1 /* Gimple folding definitions.
   2
   3    Copyright (C) 2011-2014 Free Software Foundation, Inc.
   4    Contributed by Richard Guenther <rguenther@suse.de>
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 3, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 #ifndef GCC_GIMPLE_FOLD_H
  23 #define GCC_GIMPLE_FOLD_H
  24
  25 extern tree canonicalize_constructor_val (tree, tree);
  26 extern tree get_symbol_constant_value (tree);
  27 extern void gimplify_and_update_call_from_tree (gimple_stmt_iterator *, tree);
  28 extern bool fold_stmt (gimple_stmt_iterator *);
  29 extern bool fold_stmt (gimple_stmt_iterator *, tree (*) (tree));
  30 extern bool fold_stmt_inplace (gimple_stmt_iterator *);
  31 extern tree maybe_fold_and_comparisons (enum tree_code, tree, tree,
  32                                         enum tree_code, tree, tree);
  33 extern tree maybe_fold_or_comparisons (enum tree_code, tree, tree,
  34                                        enum tree_code, tree, tree);
  35 extern bool arith_overflowed_p (enum tree_code, const_tree, const_tree,
  36                                 const_tree);
  37 extern tree no_follow_ssa_edges (tree);
  38 extern tree follow_single_use_edges (tree);
  39 extern tree gimple_fold_stmt_to_constant_1 (gimple, tree (*) (tree));
  40 extern tree gimple_fold_stmt_to_constant (gimple, tree (*) (tree));
  41 extern tree fold_const_aggregate_ref_1 (tree, tree (*) (tree));
  42 extern tree fold_const_aggregate_ref (tree);
  43 extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree,
  44                                               bool *can_refer = NULL);
  45 extern tree gimple_get_virt_method_for_vtable (HOST_WIDE_INT, tree,
  46                                                unsigned HOST_WIDE_INT,
  47                                                bool *can_refer = NULL);
  48 extern bool gimple_val_nonnegative_real_p (tree);
  49 extern tree gimple_fold_indirect_ref (tree);
  50 extern bool arith_code_with_undefined_signed_overflow (tree_code);
  51 extern gimple_seq rewrite_to_defined_overflow (gimple);
  52
  53 /* gimple_build, functionally matching fold_buildN, outputs stmts
  54    int the provided sequence, matching and simplifying them on-the-fly.
  55    Supposed to replace force_gimple_operand (fold_buildN (...), ...).  */
  56 extern tree gimple_build (gimple_seq *, location_t,
  57                           enum tree_code, tree, tree,
  58                           tree (*valueize) (tree) = NULL);
  59 inline tree
  60 gimple_build (gimple_seq *seq,
  61               enum tree_code code, tree type, tree op0)
  62 {
  63   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0);
  64 }
  65 extern tree gimple_build (gimple_seq *, location_t,
  66                           enum tree_code, tree, tree, tree,
  67                           tree (*valueize) (tree) = NULL);
  68 inline tree
  69 gimple_build (gimple_seq *seq,
  70               enum tree_code code, tree type, tree op0, tree op1)
  71 {
  72   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1);
  73 }
  74 extern tree gimple_build (gimple_seq *, location_t,
  75                           enum tree_code, tree, tree, tree, tree,
  76                           tree (*valueize) (tree) = NULL);
  77 inline tree
  78 gimple_build (gimple_seq *seq,
  79               enum tree_code code, tree type, tree op0, tree op1, tree op2)
  80 {
  81   return gimple_build (seq, UNKNOWN_LOCATION, code, type, op0, op1, op2);
  82 }
  83 extern tree gimple_build (gimple_seq *, location_t,
  84                           enum built_in_function, tree, tree,
  85                           tree (*valueize) (tree) = NULL);
  86 inline tree
  87 gimple_build (gimple_seq *seq,
  88               enum built_in_function fn, tree type, tree arg0)
  89 {
  90   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0);
  91 }
  92 extern tree gimple_build (gimple_seq *, location_t,
  93                           enum built_in_function, tree, tree, tree,
  94                           tree (*valueize) (tree) = NULL);
  95 inline tree
  96 gimple_build (gimple_seq *seq,
  97               enum built_in_function fn, tree type, tree arg0, tree arg1)
  98 {
  99   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1);
 100 }
 101 extern tree gimple_build (gimple_seq *, location_t,
 102                           enum built_in_function, tree, tree, tree, tree,
 103                           tree (*valueize) (tree) = NULL);
 104 inline tree
 105 gimple_build (gimple_seq *seq,
 106               enum built_in_function fn, tree type,
 107               tree arg0, tree arg1, tree arg2)
 108 {
 109   return gimple_build (seq, UNKNOWN_LOCATION, fn, type, arg0, arg1, arg2);
 110 }
 111
 112 extern tree gimple_convert (gimple_seq *, location_t, tree, tree);
 113 inline tree
 114 gimple_convert (gimple_seq *seq, tree type, tree op)
 115 {
 116   return gimple_convert (seq, UNKNOWN_LOCATION, type, op);
 117 }
 118
 119 /* In gimple-match.c.  */
 120 extern tree gimple_simplify (enum tree_code, tree, tree,
 121                              gimple_seq *, tree (*)(tree));
 122 extern tree gimple_simplify (enum tree_code, tree, tree, tree,
 123                              gimple_seq *, tree (*)(tree));
 124 extern tree gimple_simplify (enum tree_code, tree, tree, tree, tree,
 125                              gimple_seq *, tree (*)(tree));
 126 extern tree gimple_simplify (enum built_in_function, tree, tree,
 127                              gimple_seq *, tree (*)(tree));
 128 extern tree gimple_simplify (enum built_in_function, tree, tree, tree,
 129                              gimple_seq *, tree (*)(tree));
 130 extern tree gimple_simplify (enum built_in_function, tree, tree, tree, tree,
 131                              gimple_seq *, tree (*)(tree));
 132
 133 #endif  /* GCC_GIMPLE_FOLD_H */